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Finding the Fourth Proportional to 48,407.04, 66,802.20 and 27,987.57

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Solution

The fourth proportional to 48,407.04, 66,802.20 and 27,987.57 is: 38,623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,407.04 : 66,802.20 = 27,987.57 : x
  2. Step 2: Convert to fraction form
    48,407.04/66,802.20 = 27,987.57/x
  3. Step 3: Cross multiply
    48,407.04x = 66,802.20 × 27,987.57
  4. Step 4: Simplify right side
    48,407.04x = 1,869,631,248.65
  5. Step 5: Solve for x
    x = 1,869,631,248.65/48,407.04
  6. Step 6: Final answer
    x = 38,623.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.